Machine for spreading viscous substances



(NoModeL) J. H. DAY. MAGHINE FOR SPREADING VISGOUS SUBSTANOES.N0.410,822. Patented Sept. 10. 1889.

R Fi .1 A

. B 5 (115012 a-b dud/12 eases Y r I we 72/721" a fiozw y n. PETERS.Pnuwummahur. Wahin lon. n. c.

UNITED STATES PATENT OFFICE.

JOHN H. DAY, OF ALBANY, NEW YORK.

MACHINE FOR SPREADING VISCOUS SUBSTANCES.

SPECIFICATION forming part of Letters Patent No. 410,822, datedSeptember 10, 1889. A

Application filed July 12, 1889.

T aZZ whom it may concern.-

Be it known that 1, JOHN H. DAY, a citizen of the United States,residing at the city of Albany, in the county of Albany and State of NewYork, have invented a new and useful Machine for Spreading ViscousSubstances, of which the following is a specification.

My invention relates to machines for spreading substances of a stickygluey nature, or of [O a semi-liquid consistency, for drying; and theobject of my invention is to produce a machine for spreading in thinlayers or ribbons the substances to be dried, in order that the moisturecontained therein may be more readily expelled. I attain this object bythe mechanism illustrated in the accompanying drawings, in which- Figure1 is an elevation with a part of the cylinder broken away. Fig. 2 is avertical section along the line a b on Fig. 1. Fig. 3 is a horizontalsection along the line 0 d of Fig. 2. Fig. 4 is an elevation showing myimproved spreader in operation. Fig. 5 shows the propeller J and knife Kof the feeding mechan- 2 5 ism, and Fig. 6 is a detail view of thevalveholding receptacle.

Similar letters refer to similar parts throughout the several views.

For the purpose of drying many substances,

0 especially those of a viscous nature-such as paste, glue, and manychemical compoundsit is desirable to cause them to assume a thinribbon-like form, in order that the water may be rapidly expelled byevaporation or by other 3 5 means. To accomplish this result, thesubstance to be treated is placed into the hopper H, (see Fig. 4,) andcoming into contact with the propelling-screw J, attached to thepowerpulley V, it is moved forward by the action of the screw and comesin contact with the rotating knife K, attached to the screw J near itspoint, where it is cut into small particles capable of being forcedthrough the perforated plate T, placed at the end of the cylinder D nearthe knife K.

The mechanism thus described is substantially the same as that in usefor making mince-meat.

To the end of the cylinder D of the feeding and cutting machine I attachby suitable coupling B, Fig. 3, the cylinder A, which is Serial No.317,323. (No model.)

open at the end nearest the perforated plate T and closed byasuitablecap at the opposite end. The coupling referred to is made by screwingthe ring R on the cylinder A onto the cylinder D, there being threadscut on the cylinder D near the end to which the cylinder A is to beattached.

Along the lower side of the cylinder A, I cut a series of slots 9 g g,through which the thin layers of paste or other treated substances pass.

In order that the substances may pass in uniform thickness through theslots 9 and be readily and uniformly delivered in layers preparatory todrying, I arrange a system of valves within the cylinder A in thefollowing manner: I place within the cylinder the valvecontainingreceptacle L, which fits closely against onehalf of the interior surfaceof the cylinder, being semicircular in form. The plate O,which forms theback of the receptacle L, passing through the cylinder at or near thecenter thereof, is provided near one end (the top) with a longitudinalopening 71., through which the substance passes from the cylinder intothe receptacle L. To the upper interior portion of the semicircular sideof the receptacle L, I attach by pin and eye or in any suitable mannerthe valves not 12, which are simply longitudinal narrow plates hinged onthe pin or bolt P. Against the side of each of the valves n toward theback plate 0 of the receptacle L presses the spiral spring S, whichspring is secured to the plate 0 and to each valve 11. The other side ofthe valve n is opeiated upon by the thumb-screw 1*,passing through thecylinder A and the semicircular surface of the receptacle L and pressesagainst a boss on the surface of the valve 41. The resiliency of thespring S tends to close the valve and prevent the substance from passingout of the cylinder A.

The substance entering the cylinder A is forced through the opening h inthe receptacle L and passes through the slots m and gin layers of athickness regulated by the valve n.

It is apparent that a greater orless number of valves may be used, asdesired.

My machine is commonly used for drying zoo flour paste, which ordinarilyis composed of flour, glue, and water. Afi er passing from my machinethe paste is in a thin narrow ribbonlike form, from which the water maybe rapidly expelled by evaporation.

\Vhat I claim as my invention, and desire to secure by Letters Patent,is-

1. In a spreading-machine, the combination of a cylindrical vesselhaving a longitudinal slot along its side, a valvcl1olding receptacleplaced within said cylinder, a valve hinged at one side to a bolt in theinterior of said valveholding receptacle and having a spring pressingagainst one side thereof, and a thumbscrew passing through said cylinderin contact with the opposite side of said valve, substantially asdescribed.

.3. In a sprcading-inachine, the combination of a valve-holdingreceptacle L, placed Within a cylinder A, provided with a valve 01,operated by a spring S, pressing against the back plate 0 of thevalve-holding receptacle and against one side of said valve or, theopposite side of said valve a being in contact with a thumb-screw 7', alongitudinal slot along the side of said valve-holding receptacle, and acorresponding slot g in said cylinder, all substantially as described.

3. In a spreading-machine, the combination of the cylinder D, providedwith a feedinghopper II, a propeller J, placed longitudinally in saidcylinder, a knife K, attached to the said propeller near its point, andthe perforated plate T at the end of said cylinder near the knife K,with the cylinder A, attached to said cylinder I) by coupling R, saidcylinder A having a series of longitudinal slots g along its side, andhaving avalvc-holding receptacle L placed within it, containing a valvea, spring S, attached to the back plate C of the valveholding receptacleand to the valve "12, and a screw 0', passing through the said cylinderand in contact with said valve n, all substantially as described.

JOHN ll. DAY.

Witnesses:

FREDERICK W. Clumnon, WALTER E. WARD.

